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search files which doesnot match pattern ?

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# 1  
Old 07-16-2008
search files which doesnot match pattern ?
Hi

I need a command to search files in a directory which does not match with pattern .. Plz send me this

Ex : Test is directory and has some 10 files with different name all are with *.dat extension , need to search files which doesnot contain word "Dummy file".


Thanks
# 2  
Old 07-16-2008
Quote:
Originally Posted by madankumar
Hi

I need a command to search files in a directory which does not match with pattern .. Plz send me this

Ex : Test is directory and has some 10 files with different name all are with *.dat extension , need to search files which doesnot contain word "Dummy file".


Thanks
Code:
find . -name "*.dat" | xargs grep -v "Dummy file"

Thanks
# 3  
Old 07-16-2008
That will just display all lines in all files that do not contain "Dummy file".

Try this instead:

Code:
# list files that *do* contain "Dummy file" and save in a file
grep -l "Dummy file" * > /tmp/matches
# use that file to exclude them from the list of files
ls | grep -xvf /tmp/matches

# 4  
Old 05-18-2009
Use this

find -name "*.dat" | xargs grep -L "Dummy File"
# 5  
Old 05-18-2009
Why reply to a thread that is 10 months old, which has already been answered, and give the wrong answer???
# 6  
Old 05-18-2009
Oh ... I just came across this using Google looking for something. Thought I would post the answer. Maybe, someone else would benefit. Anyways, I dont see why the answer is wrong.
# 7  
Old 05-18-2009
My apologies, I replied in haste... your answer is correct. I misread -L as -l (I didn't know about the -L inverse feature in GNU grep).
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